Engine question Formula car up to 2litres

Hello guys, we are just hypothetically superior to which engine is the right thing for a Formula Car. For the current one the decision has already been made, but for a possible upcoming project I already collect information. Usually the Formula Cars up to 2L engine capacity have proven Opel, VW, BMW and Honda 16v engines. I consider whether it is a bit “unconventional” not better at relatively high costs. (we talk about private amateur sport!!) My e rster thought was 2Liter V6 or V8. V engine alone because of the much better possibilities in the airbox construction. Added to this is speed behavior, weight, .. and not least the sound. After a long googleei I found only 2 vehicles that have fitted the standard 2-Liter V engines. Nissan Maxima (v6) and an old Ferrari (v8). Quite perhaps interesting the Nissan. Does someone know the engine and can say something more precise about it? Are there any other comparable Mot oren? I have often encountered “own constructions”. These were two motorcycle engines assembled to a V8. I have read about 300hp of performance at just 75kg. I find it very interesting, but all the links that didn’t lead to a Caterham RST V8 were dead (Cyclonepower zb). Has there been more information or even experience? Here are some key data about the project: Formula car, engine revision at the earliest all 1500km, Lei What do you think about what else I didn’t even think about? Greeting PS: How does the torque R4 vs. V8 engine behave with the same engine capacity?